Glass forming machine



Dec. 1, 1936. E E

GLASS FORMING MACHINE Filed June 12,. 1935 I 5 she ts-she t 2 I Zhmentor EDWARD MILLER Gtfomegf, f

Dec. 1, 1936. E. MILLER I 7 2,062,522 v GLASS FORMING MACHINE w R Ew L L W/ D R A. W D .E U

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Patented Dec. 1, 1936 I Edward Millencolumbus,ohiol'assignor tohynch i l Corporation, Anderson, lndva' corporation.offlc:

Application Jane 1 2, 1933, Se:rlal'fiddling f e a 25 Claims.

the .molten or plastic gob of glass. Usually in such machines the gob is first pressed in a sma. able mold to form a parison and the parison subf sequentlytransferred to, a blow mold to be ex-..

panded or shaped byair pressure into the article of final form.

Because the parisonstill hotand soft at the timeof its transfer it is subject, todi'stortion or 20 injury by the movements thereof in efiecting its transfer laterally from the'parison mold 'to the blow mold. Y

One of the principal objects of the present in;

vention is to avoid said movement of the'p'a'rison and to accomplish this I provide meanswhereby the parisonis held in its original position and the blow moldmoved to it. Other objects will appear from the disclosure herein.

The invention is-advantageously illustrated with 30 reference to a pressing and blowing machine and is embodied in the examples herein shown and described the features of novelty being finally claimed. s g s I- In the accompanying drawings. of which there are three sheets-F; I 1 r j Figure 1 is a plan view with parts broken-out of the mold-carryingtable with the molds and their operating means. i g

Fig; ;2 is a vertical section on the line II-lI 40 i i Fig. 3 is a detail view in elevation looking at the left hand mold. shown in Fig. 2,.a portion of the rim of thetable being broken out showing a portion of the means for operating the mold Fig. 4 is a plan view looking down from the line IV-IVFig. 2. Fig. 5 is a plan view of the neck ring table wit the neck ring holders thereon. I

Fig. 6 is avertical section on th; line Fig. broken out horizontally and on a larger scale but showing-moredetail thanappear in Fig.5.

In the views In designates the central column about which themold table H and the neck ring 55 table I! are rotated in unison preferably ab each of If the g halv'es' .oftwo "moldy-the pariso'n; Y

thatliein.intersecting planes, each plane being. I 4

s for that purpose on theirfaxes 15. correspo din movement orupon inward movement toward each; other ,thereby opening or closing the mqldsl ends downwardly extended fro1le rs 26 thatperma} radially 'slidingsteni portionfl (see Flg 'srl 2.3;.

. tofsaidstem portion' i'l."Thefunctionbfthe cross trolled by'fixedc'ain grooves za;'rdrnied and timed. '6

to form theparis'onorblow 'moldsj marks intermittentiorjstart'landjstominovment; as shall". hereinafter appear indetail According to myiinve tion I secure'or. form" mold I 3 andthe' blow 'mold'f lf-in one block or. cage l5 'each"lcage being' pivoted by a pin IQ-tog a bell-crank lever lI Ifulerujrned.'atj-QI'Q. Theapivot .1 pin is or each" block or cageiextends through an' arcuate slot'l'i ilFig. a 1) in the'm'old tab1e }pe1 mittin g,roekingjnioveinerit ofthe'lever's l I softhat' the blocks carrbe swung-towardandffi'om each other 'resplectively to closedand'op'ened-position The .half rnolds "in eachca'geare formed infaces 7 at rightanglesto a radius oifthe axis oi the pivot .1 l6 'dflj'the cfifiandiso{that corresponding halves of the individual molds cairlzoe registeredtd-iorm the complete mold when the.blocksflare shifted inner arms of the bell crank levers"l"| are eonnect'ed a "pin f and 5 slot connection to radially: arran ed barsfflS that by .raa almovemenerespecting the "table" cause the outer arms'of the bell-crank levers to swing apartPupon lfoutwardi spectively. A I

c ,The lower end of the piyot music-or the blocks,. or cageshave. securedtothem crank" arms 251 I (see Figs l.2ji3,'jand14) that have at their-ffree o nently engages, cross groove 21". in the "endiOfa and. 4) saidoross groove standing atright-angle's groove is to oscillate'the mold cagesandto do' this -2 I the lower side of the cross groove portion bf the slidingstem portionfl mayhave a downwardly projecting roller 29;" the position 0'1- which is 'cone to 'qs'cillate'the blocks l5 on pins 5 by movin'g the f: pivot pins 16 and rollers"26,, inwardfoif outward Eachoi -the barsfliis 'provi ed withfadown wardlyexte'nded roller-: 'thatenters stationary cam groovesfland 22.'-' The cam" groove 2 l is, designed to swing the bell crankl'eversl-'|.,' firstjto closed position toJ present (at charging stationfB) 'j'( Fig.1l7) the-closed parison mold lifor the recepY- tion offth'efg'ob 'oi' molten' glass and'the pressing or formingat station "C of;the *paifison "bythe plunger (see Fig. 6). and-'jconnetirigsaid pa'ri Sonjby the" pressed glass with the neckring "'sub sequentlythecamgroove 2lholds tfifisblowmoldi s I tion 50 of the fixed center cam 50 thereby sepato inclose the parison' in the blow mold is eifected between'the positions D and Ei'of the :blocks, as best seen in Fig. 1. In said transfer operation the bar I!) is pressed outward by the-bulging porrating the outer arms of the bell-crank. levers l1 7 carrying the cages l and their molds away from the parison,. this being permittedby arcuateslots Hi in the table. After thisand while the cages are still laterally. separated the mold blocks are i turned on their pivots l6 by slide 21 actuated by the inward slant of cam 28 after which the blocks are closed tightly together by means of the shoul-' deredslide 23 actuated by the fluid pressure-piston 24 engaging the roller 20. The operation of said piston rods draws 'bak' the arm ll inward thereby swinging the cages together} and when the roller 20 leavesfthe slidejqlfitenters the cam j groove 22 by which the cages"j|5 are held'with theirblow mold s'ectionsclosed together around the parison and in .position to be blown to'form the were at the position or stationmarked F.

When the cages are. shifted from. the position as in station D, into the other position, "as at station E, the position of themold' axi'sisnot changed and the blow mold is closed around the parison without lateral shifting of the parison. This permits of a rapid transferring without danger of distorting the parison and makes possible an increased blowingand cooling time for a given number of molds.

. The blow, head is shown atg'li (Fig. 6) said head" being'supported by arm 16 and moved downward into. blowing position as usual. A'tj the time the ware is blown the levers l'l may be clamped together at actuated from suitable'obvious means operated by fluid pressur cy p ed at s. I I

. The. ana ers pass thrown sta i position G without actuation upon the ware to permit some cooling thereof..

In connection with the parison and biowmolds there is employed a neck ring and after the gob oftglass, of definite predetermined quantity, is dropped into the parison moldyit is immediately pressed with a plunger and is displaced into the neck ring cavity as shown in Fig. 6. In this illustrated form the neck ring travels with the glass the entlre circuit of the molds and until the finally blown article is removed from the blow mold. a '1 4 Referring now to, Figs. 5 and: 6 the parts'oithe neck ring are shown at 30,30, the twopartsbeing hinged together at.3 l on a circular support 32 coaxial with the mold carrier H the hingejpins 3| serving to connect the mold carrier 7 l I and neck mold carrier I! together for movement in unison.

The number and verticalvlocation jot the neck rings coincide withgthose of the molds below and cooperate with said molds through the circuit of operation. Said neck ring parts 30, 30, are provided with outwardly projecting ears 33 to which arelpivoted links 34, -34, connected together, bya cross bar or link 35 Connected withsaid cross bar 35 is a-stem 36 having a sliding pin and slot connection with the tubular. portion of a radial bar lL saidi'tubular portion containing a spring as tendingito holdthe neck ring parts together when they are closed. At its innerend the barll is provided with an upwardly projecting roller 39 entered in groove 40. The bounding walls of the groove 40 are circular except for a cut-away portion 40" in the inner wall coinciding vertically with the radius of the take-out station H of the' mold cages.

piston 42 in a stationarily mounted cylinder 43,

the rod'of said piston carrying a block 44 to press the roller 39 into the cut-away portion of the inner wall of thegroove 40.

The tables may advantageously be intermittently rotated by suitable means as for instance ana1 "m journaled around the center column, said arm carrying at its outer end a'vertical pin .u that is actuated in an upward direction by a spring so that the pin will engageima-socket 63 in a plate 64 secured to'the lower part of the table II. Arm til hasa'ttache'dto it at the end of a piston rod reciprocated by a'flllldj pressure cylinder (not shown) ,-the function of which to pushthearm and'pin 6| to rotate the tablel I, and at the end of the stroke the pin BI is withdrawn by a lug 65-011 the upper end of "the rod 66 of a piston 61 in a cylinder 58. An a'rrestingand holding latch III for the table is provided at "a position on the table diametrically opposite the pin 6i,said-arresting latch being the piston mama fluid pressure cylinder 12 and 's'aid' rod having a tapered end to engage a socket" neighbor to the socket 63 in the plate fl. If a Adjustably' secured'in' the base-of the machine is a bracing post 13 positioned below the region where pressure is exerted on the glass in the molds to prevent cantlng of the table at its center bearing by such pressure.

' I have reierred to the In some, instances the part of the glass article formed and held by the neck ring isremovable also it being apparent that the neck ring may be released from the g'lassjarticle at anytime after it is enclosed by the blowmold sections I4.

blocks or cages I 5 as such it being customary in such machines to se- The construction and arrangement of the 'mold' blocks or cages, the disposition and arrangement of the sections or cavities together with the op eratirg mechanism therefor, inducive to high speed operation of the machine; Each mold cage being independently mounted on 'its own rock shaft or pivot, may be quicklyjand easily shifted to bring either the parison mold and blow mold cavityaround theglass. This may be. done very quickly as the mold cages need'ohly be rocked through a small arcf'less' than 180" andprefer ablyless' than 90'; 'Hence the" transfer may be eflected without undueloss'of timepandin the case of pressing and blowing articlesjfinalblowing may take place quickly after transfer.

The forms and" arrangement of" the parts can obviously be varied without departing" from the scope of the invention as claimed T oted cage members, each memberof the pair carrying a section of a parison and a blow mold with registerable faces to 'form therespective molds the mold sections of each cage being arranged side by side and said faces lying inplanes at angles to each other, and .each face at right angles toa radius-through the axisof the pivot 1-0 and a separate neckmold forshaping the neck of the were and for supporting the glas s'parison independently of either mold section.

2. In a glass forming machine, a

oted cage members, each member carrying a section of a parison and a blow mold with register able faces, .said faces lying in planes at angles to each other and a separate neck mold adapted to cooperate with both the parison mold and blow mold sections when closed,' for supporting 2 the glass parison independently ofeither mold section.-

3. In a glass forming members, each member carrying a registerable section of a parison and a blow mold, a movable carrier on which said members are mountedand means rendered operative by movement of. the carrier for moving said cagemember. toialter nately separate and close said mold sections,'the parison mold sections of each mold cagebeing 3 closed while the blow mold sections of the same cage are open. a

4. In a glassforming: machine, a pairof cage members, each member carrying ;a registerable section of a parison and a blow mold. means on 3. which said members are pivotally mounted, a neck mold mounted above the registering sections of tions. of a parison and a blow mold, leve'rs.1 on: whichsaid cage membersare pivothlly mounted, means for swingings'aid levers to separate said levers and cage members, means'iwhe'reby' said respective mold sections are caused to close about pair of piv- 7 machine, a pair of. cage the-'samejaxisj a neck ring holder Iorithe" par i sons carried with the. cage members',"jand means whereby the blow mold sections are caused 'to-close around theparison without relative movement'ot a parisom, I j

g 9 .]In a glass forming machinefa pair of cage members, each member. carrying registerable sec-- tions of a parison'and blow mold, arms on which said members arepivotally mfountedfcam means tor oscillatingsaid .arms, "and means including} cam to oscillate the cagemeinb'erson said arms.- to cause the registering of either the parison or blow mold/sections when the arms are oscillated toward eachfpther'. f

.10. lnfagla'ssforming machine, a pair or cage ,members; each member carrying registerable'sections of a'parison and a blowmold'armsonwhich said members are pivqtally mounted, cam means forpscillating said arms, and "means including a .cam to oscillate "the cage. inrnbers. on .said arms the molds, said neck molds being independent;

of either the parison or blow molds and adapted to cooperatewith the registering parison mold 40 sections topermit shaping'of the neck portions of. the articletherein and to cooperate withthe ,registering sections of theblowmold to. 'permit transfer ofthe parison thereto and means for closing'the section's of, the parison mold independently of the sections of the ,blow mold.

registering sections of the blow mold to permit transfer of the parisonthereto, means for causing the separationof said cage members and means forregistering each pairs: the mold sections independently of the other. s I r v 6. In a glassiorming machine, a pair of cage members, each member carryingregisterablesectionsof a parison and= a;-blowQmbld, 1eversfon which said members are pivotally .mounted, means for swingingsaid lever's to separate the members-and meansto oscillate the membersto cause. the registering of eitherlthe parisonj'or blow mold sections. .1 1 I 7.:In a glass, forming-machine;apairof cage members, each member carrying registerable sections of a parison and'wa blow mold, levers on which said cage. members are pivotally mounted,

means for swinging. said levers-to separate the toward 1 for oscillating saidarms; means including a cam to oscillate themage mmbjersjon 'saidfa'rms-to in separated position;

to cause the ;rigistering of either the parison or blow mold sections about 'a given center; line when the arms are'foscillatedtoward"each other.

11. Info; glass forming machine, a pairfoffcage members, each member carrying registerablesec' tions of-ia'parison'and a blow'mold, arms on'which, said members are pivotally, mounted, cam means for oscillating said arms,"meansfincludinga cam.

to oscillate .the' cage members fon saidarm'sfto 5V cause the..regi "stering of Ieithe'r" the parison or blow mold f sections when' the arms are oscillated sections in closedlposition. "1 If a V s w n. a el ss f rm ma nera p ir] 1 8 members each me er carrying registerable see- .tionsof aparison and a blow mold, larms on'which, said members are pivotallymountedgcam;means cause the registering of .eitherthejparison "or blowmold-sections when'the'arms are oscillated toward v each other and means for holding said members 1 3,. Ina glassware'formi machine aplurality:

of pairs of moldcageseach comprising 'a parison. and ablowmold section,'aimovable carrier supporting saidrmol d'cages, means'forrnoving said" carrier, meansjjcontrolled and rendered operative by the movements;..ofsaid; carrierifo'r causing the" parison mold sections' of each pair of cagesto register andform ajparison moldfcavity ior the, shaping of the parisontherein; niearj s controlled by movement of the carrier and operative after the shaping oi gthe parison for separating; said mold cagesawayv from the paris0n,f ir idependent supporting means'forfthe parisomduri'ng such separation, means controlledbyadditional move ment. of the carrier'fand operativethereaftrffor sections thereof to registerfand for closing sai'd v blow mold sections around the 'independentlyi'suptive mold sections sameaxis.

are .causedto close about the ported ri e h i ri nfla d blw .nm1d: sjec-: 70; other, theftransverse axis of each; being at-rig'ht angles to thefaxis about which 'said'molds-are tions bein angularly disposed relative to each shifted, and means for finishingftliefarticle in the'closed blow mold sectionsf e -1-1 meme; e esm 9hme;awr9r .341 a s a s'i r s h n an case f members,-- each member; carrying re ister-able seceach otherland means for holding aid I 765' shifting the mold cages tocausethe -blow mold mold cages each including parison mold and blow mold sections, a laterally movable support for each mold cage, means for pivotally mounting each mold cage on itss pport, and means for successively operating saidimovable supports and mold cages, so as to move said cages about their pivoted supports't'o align opposed parison orblow mold sections, and then move said supports to bring said opposed mold sections together to form a complete mold cavity. i

15. In a glassware forming machine, a pair of mold cages each including parison mold and blow mold sections, angularly disposed with relation toeach' other, a laterally movable pivotal support for each mold cage, means for pivotally mounting each mold cage on its support, the transverse axis of ,each mold being'normal to the axis of said pivotal support, and means for suc cessively operating said movable suppo'rts' and mold cages, so as to move said cages about their pivoted supports to align opposed parison or blow mold sections, and then move said supports to bring said opposed mold sections together to form a complete mold cavity. 16. In a gla'sswaregforming" machine; a pair of mold cages each including parison mold and blow moldfsections, a laterally movable support for each mold cage, means for rockably mounting each mold cage on its support, and means for successively operating'said movable supports and mold cages, so as to move said cages-about their supports to align opposed parison or blow mold sections, and then move said supports to'bring said opposed mold sectionsttogetherto" form a complete mold cavity. c c

V 17. In a glassware forming machine, separate mold cages each carrying preliminary and'final mold cavities with the neck ends of l said cavities uppermost, mold cage actuating means'connected to each of said cages forindependent movement about spaced supports, saidpreliminary and final mold cavities being arranged side by sideand disposed in .angularrelation to each other so'that ro cking'of the mold cages througha'rs .of less than1l80 will alternately cause the'respe'ctive preliminary and final mold cavities to register.

18. Ina glassware forming' machine, separate mold 'cageseach carrying preliminary and final mold cavities, mold cage actuating means connected to each of said cages for independent movement about spaced supports; said preliminary and final mold'cavities being arranged side by side and disposed in angular relation to each other so that rocking of themold cages through arcs of less than 90 will'alternately cause the reblow' mold, a movable carrier for said'cag'einembers adapted to move said cages successively. to

and final mold cavities to separate mold opening positions, including sp'aced transfer and discharge positions, means-adjacent the transfer station and operative as 'a result of the movement of the carrier for opening the blank molds to permit transfer of the parison from the parison mold'to the blow mold, and separate means adjacent thedischarge station and operative as aresult'of carrier movement forv opening the blow molds to permitthe discharge of the finished ware. l s I j.

20. In a glassware forming machine a plurality of pairs of mold cages each comprising a'paris'on and a blow mold section, the cages'and'mold secable post is carried mold cages, means for moving said carrier, means controlled and rendered operative'by the movements of, said carrier for causing' the parison mold sections of eachpair of cages to register and form a parison mold cavity for the shaping of the parison therein, meansoperative after the shapingfof the parison for separating said mold cages away from the parison, independent supporting means for the parison-during such separation, means operative thereafter for shifting the'mold cages toicause the'blow mold sections thereof'toregister and for closing said'blow mold sections around the independently supported parison, and means for flnishingthearticle in the closed blow mold sections. w 21. In a glassware forming machine a plurality of pairs'of mold cages each comprising a parison and a blow mold sectiom'a movable carrier supporting said mold cages, a vertically disposed post on "which" each mol'd-icage is independently mounted, means for'moving said carrier, means controlled and rendered-operative by'the movements of said carrier for causing the parison moldlsections of each pair of cages to-register and form a parison mold cavity forthe shaping of the parison therein',*means operative after the shaping of the parison for separating said mold cages away from the parison, independent supporting means for the; parison 1 during such separation, means operative thereafter for shiftmg the mol ia 'es to 'cause'the blow mold sections thereof to'register and for closing said blow mold sections'around the independently sup-' ported parison, and means for finishing the the pa'rison mold sections 'of each pairof cages to register and form a parison mold cavity for the shapingof the parison thereimmeans operative after the shaping of the parison for separating said mold cages; away from the parison, independent supporting means for the parison during such separation, mearisoperative thereafter for shifting the mold cages to cause the blow mold sections thereof to register and for closing said blow mold sections around the independently supported parison, and means-for finishingthe article in the closed blow mold sections. U

(iii

23,"A glassware forming machine as'deflned in claim 22 wherein each vertically disposed rock- Y I v byalaterally' swingable bell crank lever armsf J 24. 'In' a glassware forming machine a plurality of mold cages'each comprising a'parison and'a blowimold section, a movable carrier supporting saidmold cages, means for moving said carrier,

means controlled and rendered operative by the movement of the carrier for causing theparison mold section of each pairof cages to form a parison mold cavity'for the shaping of 'theparison therei'njcam means rendered operative afterthe V shapingofthe parison for separating the parison 'moldsections "away from the parison and shifting the blow mold sectionsinto position relative to. *the parison, independentsupporting means for supporting the parisonduringsuch separation,

after the shaping of the parison for, separating I said mold cages away from the parison,; independentsupporting means for the parison during such separation, means operative thereafter for shifting thelmold cages to cause the blowmoldv sections thereof to'register and i0! closing said, blow mold sections around the independently su'pported parison, means for releasing the independent isupportingmeans after the blow mold sections are closed around the parison, andmeans for finishing the article in the closed blowrnold sections. EDWARD MILLER. a 

